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28e7fd62 | 1 | # Copyright 1997-2013 Free Software Foundation, Inc. |
fbbe92c5 SDJ |
2 | |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | ||
17 | # This program tests the 'catch syscall' functionality. | |
18 | # | |
19 | # It was written by Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com> | |
20 | # on September/2008. | |
21 | ||
22 | if { [is_remote target] || ![isnative] } then { | |
23 | continue | |
24 | } | |
25 | ||
2d4e0376 | 26 | # Until "catch syscall" is implemented on other targets... |
2e0d821f | 27 | if { ![istarget "hppa*-hp-hpux*"] && ![istarget "*-linux*"] } { |
2d4e0376 YQ |
28 | continue |
29 | } | |
30 | ||
31 | # This shall be updated whenever 'catch syscall' is implemented | |
32 | # on some architecture. | |
33 | #if { ![istarget "i\[34567\]86-*-linux*"] | |
34 | if { ![istarget "x86_64-*-linux*"] && ![istarget "i\[34567\]86-*-linux*"] | |
35 | && ![istarget "powerpc-*-linux*"] && ![istarget "powerpc64-*-linux*"] | |
36 | && ![istarget "sparc-*-linux*"] && ![istarget "sparc64-*-linux*"] | |
9f948660 | 37 | && ![istarget "mips*-linux*"] && ![istarget "arm*-linux*"] } { |
2d4e0376 YQ |
38 | continue |
39 | } | |
fbbe92c5 | 40 | |
f76495c8 | 41 | standard_testfile |
fbbe92c5 | 42 | |
2e0d821f SDJ |
43 | if { [prepare_for_testing ${testfile}.exp $testfile ${testfile}.c] } { |
44 | untested catch-syscall.exp | |
45 | return -1 | |
46 | } | |
47 | ||
fbbe92c5 SDJ |
48 | # All (but the last) syscalls from the example code |
49 | # They are ordered according to the file, so do not change this. | |
4924df79 | 50 | set all_syscalls { "close" "chroot" "pipe" "write" "read" } |
fbbe92c5 | 51 | set all_syscalls_numbers { } |
2e0d821f | 52 | |
fbbe92c5 SDJ |
53 | # The last syscall (exit()) does not return, so |
54 | # we cannot expect the catchpoint to be triggered | |
55 | # twice. It is a special case. | |
56 | set last_syscall "exit_group" | |
2e0d821f | 57 | set last_syscall_number { } |
fbbe92c5 | 58 | |
fbbe92c5 SDJ |
59 | # Internal procedure used to check if, after issuing a 'catch syscall' |
60 | # command (without arguments), the 'info breakpoints' command displays | |
61 | # that '"any syscall"' is to be caught. | |
62 | proc check_info_bp_any_syscall {} { | |
fbbe92c5 SDJ |
63 | # Verifying that the catchpoint appears in the 'info breakpoints' |
64 | # command, but with "<any syscall>". | |
65 | set thistest "catch syscall appears in 'info breakpoints'" | |
66 | gdb_test "info breakpoints" ".*catchpoint.*keep y.*syscall \"<any syscall>\".*" $thistest | |
67 | } | |
68 | ||
69 | # Internal procedure used to check if, after issuing a 'catch syscall X' | |
70 | # command (with arguments), the 'info breakpoints' command displays | |
71 | # that the syscall 'X' is to be caught. | |
72 | proc check_info_bp_specific_syscall { syscall } { | |
fbbe92c5 SDJ |
73 | set thistest "syscall(s) $syscall appears in 'info breakpoints'" |
74 | gdb_test "info breakpoints" ".*catchpoint.*keep y.*syscall(\[(\]s\[)\])? (.)?${syscall}(.)?.*" $thistest | |
75 | } | |
76 | ||
77 | # Internal procedure used to check if, after issuing a 'catch syscall X' | |
78 | # command (with many arguments), the 'info breakpoints' command displays | |
79 | # that the syscalls 'X' are to be caught. | |
80 | proc check_info_bp_many_syscalls { syscalls } { | |
fbbe92c5 SDJ |
81 | set filter_str "" |
82 | ||
83 | foreach name $syscalls { | |
84 | set filter_str "${filter_str}${name}, " | |
85 | } | |
86 | ||
87 | set filter_str [ string trimright $filter_str ", " ] | |
88 | ||
89 | set thistest "syscalls $filter_str appears in 'info breakpoints'" | |
90 | gdb_test "info breakpoints" ".*catchpoint.*keep y.*syscalls (.)?${filter_str}(.)?.*" $thistest | |
91 | } | |
92 | ||
93 | # This procedure checks if there was a call to a syscall. | |
94 | proc check_call_to_syscall { syscall } { | |
2e0d821f | 95 | global decimal |
fbbe92c5 SDJ |
96 | |
97 | set thistest "program has called $syscall" | |
2e0d821f | 98 | gdb_test "continue" "Catchpoint $decimal \\(call to syscall .?${syscall}.?\\).*" $thistest |
fbbe92c5 SDJ |
99 | } |
100 | ||
101 | # This procedure checks if the syscall returned. | |
102 | proc check_return_from_syscall { syscall } { | |
2e0d821f | 103 | global decimal |
fbbe92c5 SDJ |
104 | |
105 | set thistest "syscall $syscall has returned" | |
2e0d821f | 106 | gdb_test "continue" "Catchpoint $decimal \\(returned from syscall ${syscall}\\).*" $thistest |
fbbe92c5 SDJ |
107 | } |
108 | ||
109 | # Internal procedure that performs two 'continue' commands and checks if | |
110 | # a syscall call AND return occur. | |
111 | proc check_continue { syscall } { | |
fbbe92c5 SDJ |
112 | # Testing if the 'continue' stops at the |
113 | # specified syscall_name. If it does, then it should | |
114 | # first print that the infeior has called the syscall, | |
115 | # and after print that the syscall has returned. | |
116 | ||
117 | # Testing if the inferiorr has called the syscall. | |
118 | check_call_to_syscall $syscall | |
119 | # And now, that the syscall has returned. | |
120 | check_return_from_syscall $syscall | |
121 | } | |
122 | ||
123 | # Inserts a syscall catchpoint with an argument. | |
124 | proc insert_catch_syscall_with_arg { syscall } { | |
2e0d821f | 125 | global decimal |
fbbe92c5 SDJ |
126 | |
127 | # Trying to set the catchpoint | |
128 | set thistest "catch syscall with arguments ($syscall)" | |
2e0d821f | 129 | gdb_test "catch syscall $syscall" "Catchpoint $decimal \\(syscall \'?${syscall}\'?( \[${decimal}\])?\\)" $thistest |
fbbe92c5 SDJ |
130 | |
131 | check_info_bp_specific_syscall $syscall | |
132 | } | |
133 | ||
134 | # Inserts a syscall catchpoint with many arguments. | |
135 | proc insert_catch_syscall_with_many_args { syscalls numbers } { | |
2e0d821f SDJ |
136 | global decimal |
137 | ||
fbbe92c5 SDJ |
138 | set catch [ join $syscalls " " ] |
139 | set filter_str "" | |
140 | ||
141 | foreach name $syscalls number $numbers { | |
2e0d821f | 142 | set filter_str "${filter_str}'${name}' \\\[${number}\\\] " |
fbbe92c5 SDJ |
143 | } |
144 | ||
145 | set filter_str [ string trimright $filter_str " " ] | |
146 | ||
147 | # Trying to set the catchpoint | |
148 | set thistest "catch syscall with arguments ($filter_str)" | |
2e0d821f | 149 | gdb_test "catch syscall $catch" "Catchpoint $decimal \\(syscalls ${filter_str}\\).*" $thistest |
fbbe92c5 SDJ |
150 | |
151 | check_info_bp_many_syscalls $syscalls | |
152 | } | |
153 | ||
154 | proc check_for_program_end {} { | |
fbbe92c5 SDJ |
155 | # Deleting the catchpoints |
156 | delete_breakpoints | |
157 | ||
fda326dd | 158 | gdb_continue_to_end |
fbbe92c5 SDJ |
159 | } |
160 | ||
161 | proc test_catch_syscall_without_args {} { | |
2e0d821f | 162 | global all_syscalls last_syscall decimal |
fbbe92c5 | 163 | |
eb4ca471 PA |
164 | with_test_prefix "without arguments" { |
165 | # Trying to set the syscall. | |
2e0d821f | 166 | gdb_test "catch syscall" "Catchpoint $decimal \\(any syscall\\)" |
fbbe92c5 | 167 | |
eb4ca471 | 168 | check_info_bp_any_syscall |
fbbe92c5 | 169 | |
eb4ca471 PA |
170 | # We have to check every syscall. |
171 | foreach name $all_syscalls { | |
172 | check_continue $name | |
173 | } | |
fbbe92c5 | 174 | |
eb4ca471 PA |
175 | # At last but not least, we check if the inferior has called |
176 | # the last (exit) syscall. | |
177 | check_call_to_syscall $last_syscall | |
fbbe92c5 | 178 | |
eb4ca471 PA |
179 | # Now let's see if the inferior correctly finishes. |
180 | check_for_program_end | |
181 | } | |
fbbe92c5 SDJ |
182 | } |
183 | ||
184 | proc test_catch_syscall_with_args {} { | |
eb4ca471 | 185 | with_test_prefix "with arguments" { |
eb4ca471 PA |
186 | set syscall_name "close" |
187 | insert_catch_syscall_with_arg $syscall_name | |
fbbe92c5 | 188 | |
eb4ca471 PA |
189 | # Can we continue until we catch the syscall? |
190 | check_continue $syscall_name | |
fbbe92c5 | 191 | |
eb4ca471 PA |
192 | # Now let's see if the inferior correctly finishes. |
193 | check_for_program_end | |
194 | } | |
fbbe92c5 SDJ |
195 | } |
196 | ||
197 | proc test_catch_syscall_with_many_args {} { | |
eb4ca471 | 198 | with_test_prefix "with many arguments" { |
2e0d821f | 199 | global all_syscalls all_syscalls_numbers |
fbbe92c5 | 200 | |
eb4ca471 | 201 | insert_catch_syscall_with_many_args $all_syscalls $all_syscalls_numbers |
fbbe92c5 | 202 | |
eb4ca471 PA |
203 | # Can we continue until we catch the syscalls? |
204 | foreach name $all_syscalls { | |
205 | check_continue $name | |
206 | } | |
fbbe92c5 | 207 | |
eb4ca471 PA |
208 | # Now let's see if the inferior correctly finishes. |
209 | check_for_program_end | |
210 | } | |
fbbe92c5 SDJ |
211 | } |
212 | ||
213 | proc test_catch_syscall_with_wrong_args {} { | |
eb4ca471 | 214 | with_test_prefix "wrong args" { |
eb4ca471 PA |
215 | # mlock is not called from the source |
216 | set syscall_name "mlock" | |
217 | insert_catch_syscall_with_arg $syscall_name | |
218 | ||
219 | # Now, we must verify if the program stops with a continue. | |
220 | # If it doesn't, everything is right (since we don't have | |
221 | # a syscall named "mlock" in it). Otherwise, this is a failure. | |
222 | set thistest "catch syscall with unused syscall ($syscall_name)" | |
223 | gdb_continue_to_end $thistest | |
224 | } | |
fbbe92c5 SDJ |
225 | } |
226 | ||
227 | proc test_catch_syscall_restarting_inferior {} { | |
eb4ca471 | 228 | with_test_prefix "restarting inferior" { |
eb4ca471 | 229 | set syscall_name "chroot" |
fbbe92c5 | 230 | |
eb4ca471 PA |
231 | with_test_prefix "entry" { |
232 | insert_catch_syscall_with_arg $syscall_name | |
fbbe92c5 | 233 | |
eb4ca471 PA |
234 | # Let's first reach the entry of the syscall. |
235 | check_call_to_syscall $syscall_name | |
236 | } | |
fbbe92c5 | 237 | |
eb4ca471 PA |
238 | with_test_prefix "entry/return" { |
239 | # Now, restart the program. | |
240 | rerun_to_main | |
fbbe92c5 | 241 | |
eb4ca471 PA |
242 | # And check for entry/return. |
243 | check_continue $syscall_name | |
fbbe92c5 | 244 | |
eb4ca471 PA |
245 | # Can we finish? |
246 | check_for_program_end | |
247 | } | |
248 | } | |
fbbe92c5 SDJ |
249 | } |
250 | ||
bccd0dd2 | 251 | proc test_catch_syscall_fail_nodatadir {} { |
eb4ca471 | 252 | with_test_prefix "fail no datadir" { |
eb4ca471 PA |
253 | # Sanitizing. |
254 | delete_breakpoints | |
bccd0dd2 | 255 | |
eb4ca471 PA |
256 | # Make sure GDB doesn't load the syscalls xml from the system |
257 | # data directory. | |
258 | gdb_test_no_output "set data-directory /the/path/to/nowhere" | |
fc30d5e0 | 259 | |
eb4ca471 PA |
260 | # Testing to see if we receive a warning when calling "catch |
261 | # syscall" without XML support (without datadir). | |
262 | set thistest "catch syscall displays a warning when there is no XML support" | |
263 | gdb_test "catch syscall" \ | |
264 | "warning: Could not load the syscall XML file.*warning: GDB will not be able to display syscall names nor to verify if.*any provided syscall numbers are valid.*Catchpoint .*(syscall).*" \ | |
265 | $thistest | |
bccd0dd2 | 266 | |
eb4ca471 PA |
267 | # Since the catchpoint was set, we must check if it's present |
268 | # in "info breakpoints" output. | |
269 | check_info_bp_any_syscall | |
bccd0dd2 | 270 | |
eb4ca471 PA |
271 | # Sanitizing. |
272 | delete_breakpoints | |
273 | } | |
bccd0dd2 SDJ |
274 | } |
275 | ||
fbbe92c5 | 276 | proc do_syscall_tests {} { |
aae1c79a DE |
277 | # NOTE: We don't have to point gdb at the correct data-directory. |
278 | # For the build tree that is handled by INTERNAL_GDBFLAGS. | |
fbbe92c5 SDJ |
279 | |
280 | # Verify that the 'catch syscall' help is available | |
281 | set thistest "help catch syscall" | |
282 | gdb_test "help catch syscall" "Catch system calls.*" $thistest | |
283 | ||
284 | # Try to set a catchpoint to a nonsense syscall | |
285 | set thistest "catch syscall to a nonsense syscall is prohibited" | |
286 | gdb_test "catch syscall nonsense_syscall" "Unknown syscall name .*" $thistest | |
287 | ||
b45627a0 TT |
288 | # Regression test for syscall completer bug. |
289 | gdb_test "complete catch syscall close chroo" \ | |
290 | "catch syscall close chroot" \ | |
291 | "complete catch syscall with multiple words" | |
292 | ||
fbbe92c5 SDJ |
293 | # Testing the 'catch syscall' command without arguments. |
294 | # This test should catch any syscalls. | |
295 | if [runto_main] then { test_catch_syscall_without_args } | |
296 | ||
297 | # Testing the 'catch syscall' command with arguments. | |
298 | # This test should only catch the specified syscall. | |
299 | if [runto_main] then { test_catch_syscall_with_args } | |
300 | ||
301 | # Testing the 'catch syscall' command with many arguments. | |
302 | # This test should catch $all_syscalls. | |
303 | if [runto_main] then { test_catch_syscall_with_many_args } | |
304 | ||
305 | # Testing the 'catch syscall' command with WRONG arguments. | |
306 | # This test should not trigger any catchpoints. | |
307 | if [runto_main] then { test_catch_syscall_with_wrong_args } | |
308 | ||
309 | # Testing the 'catch' syscall command during a restart of | |
310 | # the inferior. | |
311 | if [runto_main] then { test_catch_syscall_restarting_inferior } | |
312 | } | |
313 | ||
fbbe92c5 | 314 | proc test_catch_syscall_without_args_noxml {} { |
eb4ca471 PA |
315 | with_test_prefix "without args noxml" { |
316 | # We will need the syscall names even not using it because we | |
317 | # need to know know many syscalls are in the example file. | |
2e0d821f | 318 | global all_syscalls last_syscall_number all_syscalls_numbers |
eb4ca471 PA |
319 | |
320 | delete_breakpoints | |
321 | ||
322 | gdb_test "catch syscall" "Catchpoint .*(syscall).*" | |
323 | ||
324 | # Now, we should be able to set a catchpoint, and GDB shall | |
325 | # not display the warning anymore. | |
2e0d821f | 326 | foreach name $all_syscalls number $all_syscalls_numbers { |
eb4ca471 | 327 | with_test_prefix "$name" { |
2e0d821f | 328 | check_continue $number |
eb4ca471 PA |
329 | } |
330 | } | |
331 | ||
332 | # At last but not least, we check if the inferior has called | |
333 | # the last (exit) syscall. | |
2e0d821f | 334 | check_call_to_syscall $last_syscall_number |
eb4ca471 PA |
335 | |
336 | delete_breakpoints | |
fbbe92c5 | 337 | } |
fbbe92c5 SDJ |
338 | } |
339 | ||
340 | proc test_catch_syscall_with_args_noxml {} { | |
eb4ca471 | 341 | with_test_prefix "with args noxml" { |
2e0d821f | 342 | global all_syscalls_numbers |
fbbe92c5 | 343 | |
eb4ca471 | 344 | delete_breakpoints |
fbbe92c5 | 345 | |
2e0d821f SDJ |
346 | # Inserting all syscalls numbers to be caught |
347 | foreach syscall_number $all_syscalls_numbers { | |
348 | insert_catch_syscall_with_arg $syscall_number | |
349 | } | |
fbbe92c5 | 350 | |
2e0d821f SDJ |
351 | # Checking that all syscalls are caught. |
352 | foreach syscall_number $all_syscalls_numbers { | |
353 | check_continue $syscall_number | |
354 | } | |
fbbe92c5 | 355 | |
eb4ca471 PA |
356 | delete_breakpoints |
357 | } | |
fbbe92c5 SDJ |
358 | } |
359 | ||
360 | proc test_catch_syscall_with_wrong_args_noxml {} { | |
eb4ca471 | 361 | with_test_prefix "with wrong args noxml" { |
eb4ca471 | 362 | delete_breakpoints |
fbbe92c5 | 363 | |
eb4ca471 PA |
364 | # Even without XML support, GDB should not accept unknown |
365 | # syscall names for the catchpoint. | |
366 | gdb_test "catch syscall nonsense_syscall" \ | |
367 | "Unknown syscall name .nonsense_syscall.*" | |
fbbe92c5 | 368 | |
eb4ca471 PA |
369 | delete_breakpoints |
370 | } | |
fbbe92c5 SDJ |
371 | } |
372 | ||
373 | proc do_syscall_tests_without_xml {} { | |
fc30d5e0 PA |
374 | # Make sure GDB doesn't load the syscalls xml from the system data |
375 | # directory. | |
27d3a1a2 | 376 | gdb_test_no_output "set data-directory /the/path/to/nowhere" |
fbbe92c5 | 377 | |
bccd0dd2 | 378 | # Let's test if we can catch syscalls without XML support. |
fbbe92c5 SDJ |
379 | # We should succeed, but GDB is not supposed to print syscall names. |
380 | if [runto_main] then { test_catch_syscall_without_args_noxml } | |
381 | ||
382 | # The only valid argument "catch syscall" should accept is the | |
383 | # syscall number, and not the name (since it can't translate a | |
384 | # name to a number). | |
fbbe92c5 SDJ |
385 | if [runto_main] then { test_catch_syscall_with_args_noxml } |
386 | ||
387 | # Now, we'll try to provide a syscall name (valid or not) to the command, | |
388 | # and expect it to fail. | |
389 | if [runto_main] then { test_catch_syscall_with_wrong_args_noxml } | |
390 | } | |
391 | ||
392 | # This procedure fills the vector "all_syscalls_numbers" with the proper | |
393 | # numbers for the used syscalls according to the architecture. | |
394 | proc fill_all_syscalls_numbers {} { | |
4924df79 GKB |
395 | global all_syscalls_numbers last_syscall_number all_syscalls |
396 | ||
397 | foreach syscall $all_syscalls { | |
398 | lappend all_syscalls_numbers [get_integer_valueof "${syscall}_syscall" -1] | |
399 | } | |
fbbe92c5 | 400 | |
2e0d821f SDJ |
401 | set last_syscall_number [get_integer_valueof "exit_group_syscall" -1] |
402 | } | |
fbbe92c5 | 403 | |
2e0d821f SDJ |
404 | # Fill all the syscalls numbers before starting anything. |
405 | fill_all_syscalls_numbers | |
fbbe92c5 SDJ |
406 | |
407 | # Execute the tests, using XML support | |
2e0d821f SDJ |
408 | if { ![gdb_skip_xml_test] } { |
409 | clean_restart $binfile | |
bccd0dd2 SDJ |
410 | do_syscall_tests |
411 | ||
412 | # Now, we have to see if GDB displays a warning when we | |
413 | # don't set the data-directory but try to use catch syscall | |
414 | # anyway. For that, we must restart GDB first. | |
2e0d821f | 415 | clean_restart $binfile |
bccd0dd2 SDJ |
416 | test_catch_syscall_fail_nodatadir |
417 | } | |
fbbe92c5 SDJ |
418 | |
419 | # Restart gdb | |
2e0d821f | 420 | clean_restart $binfile |
fbbe92c5 SDJ |
421 | |
422 | # Execute the tests, without XML support. In this case, GDB will | |
423 | # only display syscall numbers, and not syscall names. | |
424 | do_syscall_tests_without_xml |